Frequency independent twisted wave front constant beamwidth lens

Details Frequency independent twisted wave front constant beamwidth lens Frequency independent twisted wave front constant beamwidth lens

1983-06-13

1986-05-27

Lieberman, Eli

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

367 23, 367150, H01Q 1502

Patent

active

045918643

ABSTRACT:
A frequency independent constant beamwidth lens antenna concept is descri. The device may be configured in various ways such as with a cylindrical lens with a retina. The essential feature is that a twisted planar or hyperbolic paraboloidal phase or wave front is formed by the antenna which then in turn produces a frequency independent constant beamwidth beam in the far field of the antenna. Moreover, the frequency independent constant beamwidth beam may be steered or scanned in azimuth without moving the lens.

REFERENCES:
patent: 2566703 (1951-09-01), Iams
patent: 2736894 (1956-02-01), Kock
patent: 3936791 (1976-02-01), Kossoff
patent: 4168482 (1979-09-01), Sternberg
patent: 4332018 (1982-05-01), Sternberg et al.
patent: 4348678 (1982-09-01), Thomas
patent: 4381509 (1983-04-01), Rotman et al.

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